NSN 3110-01-257-6974
Part Details | TAPERED ROLLER BEARING CONE AND ROLLERS
3110-01-257-6974 An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).
Alternate Parts: SB3259A1, SB3259A-1, HM8138492255, HM813849-2-255, 3110-01-257-6974, 01-257-6974, 3110012576974, 012576974
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 31 | JUN 23, 1987 | 01-257-6974 | 00023 ( CONE AND ROLLERS, TAPERED ROLLER BEARING ) |
REFERENCE DRAWINGS & PICTURES
NORMAL ANGLE
Cross Reference | NSN 3110-01-257-6974
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SB3259A-1 | 78286 | SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY |
| HM813849-2-255 | 60038 | TIMKEN CORPORATION, THEDIV TIMKEN COMPANY |
Technical Data | NSN 3110-01-257-6974
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | NORMAL ANGLE |
| BORE DIAMETER | 2.8125 INCHES MINIMUM AND 2.8130 INCHES MAXIMUM |
| CONE CORNER RADIUS | 0.1406 INCHES NOMINAL |
| CONE WIDTH | 1.4375 INCHES MINIMUM AND 1.4455 INCHES MAXIMUM |
| STANDARD TOLERANCE DESIGNATION | AFBMA CLASS 2 |
| RETAINER FABRICATION METHOD | STAMPED |
| TEST DATA DOCUMENT | 81349-MIL-T-8679 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| CRITICALITY CODE JUSTIFICATION | ATEST$$AFTLD |
| FUNCTIONAL DESCRIPTION | CRTL APPL ACFT FLIGHT SAFETY |
| TYPE/MODEL DESIGNATION | TS |
| REFERENCE DATA AND LITERATURE | MFR SELECTED ITEM DWG SB3259,DOD-STD-100,PARA 201.4.5 |
| SUPPLEMENTARY FEATURES | OPERATING TEMP M65.0 P250.0 DEGREE F |